<template>
    <a-layout style="display: flex">
        <a-layout-sider width="200" style="background: #fff">
            <a-menu
                    mode="inline"
                    :style="{ height: '100%', borderRight: 0 }"
                    theme="light"
                    @click="handleClick"
                    :openKeys="openKeys"
            >
                <a-menu-item key="welcome">
                    <span>首页</span>
                </a-menu-item>
                <a-sub-menu v-for="item in level1" :key="item.id" :disabled="true">
                    <template #title>
                        <span>{{item.name}}</span>
                    </template>
                    <a-menu-item v-for="child in item.children" :key="child.id">
                        <MailOutlined/>
                        <span>{{child.name}}</span>
                    </a-menu-item>
                </a-sub-menu>

            </a-menu>
        </a-layout-sider>

        <a-layout-content
                :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px', flex: 1}"
        >
            <div class="welcome" v-show="isShowWelcome">
                <the-welcome></the-welcome>
            </div>
            <a-list v-show="!isShowWelcome" item-layout="vertical" size="large" :grid="{gutter: 20, column: 3}"
                    :data-source="ebooks">

                <template #renderItem="{ item }">
                    <a-list-item key="item.name">
                        <template #actions>
                          <span v-for="{ type, text } in actions" :key="type">
                            <component v-bind:is="type" style="margin-right: 8px"/>
                            {{ text }}
                          </span>
                        </template>

                        <a-list-item-meta :description="item.description">
                            <template #title>
                                <router-link :to="'/doc?ebookId='+ item.id">
                                    {{item.name}}
                                </router-link>
                            </template>
                            <template #avatar>
                                <a-avatar :src="item.cover"/>
                            </template>

                        </a-list-item-meta>
                    </a-list-item>
                </template>
            </a-list>
        </a-layout-content>
    </a-layout>
</template>

<script lang="ts">
    import {defineComponent, onMounted, ref, reactive, toRef} from 'vue';
    import axios from 'axios';
    import {Tool} from "@/util/tool";
    import {message} from "ant-design-vue";
    import TheWelcome from '@/components/the-welcome.vue';

    const listData: any = [];


    export default defineComponent({
        name: 'Home',
        components: {
            TheWelcome
        },
        setup() {
            const isShowWelcome = ref(true);
            let categoryId2 = 0;
            const ebooks = ref();
            let categorys : any;
            const openKeys = ref();
            const level1 = ref();
            const actions = [];


            const handleQueryEbook = () => {
                axios.get("/ebook/list", {
                    params: {
                        page: 1,
                        size: 1000,
                        categoryId2: categoryId2
                    }
                }).then((response) => {
                    const data = response.data;
                    ebooks.value = data.content.list;
                });
            }

            onMounted(() => {
                handleQuery();
            });

            /**
             * 数据查询
             **/
            const handleQuery = () => {

                axios.get("/category/all").then((response) => {

                    const data = response.data;
                    if (data.success) {
                        categorys = data.content;
                        console.log("原始数组：", categorys);

                        openKeys.value = [];
                        for (let i = 0; i < categorys.length; i++) {
                            openKeys.value.push(categorys[i].id)
                        }

                        level1.value = [];
                        level1.value = Tool.array2Tree(categorys, 0);
                        console.log("树形结构:Home", level1);
                    } else {
                        message.error(data.message)
                    }
                })
            }
            const handleClick = (value: any) => {
                // console.log("menu like" + JSON.stringify(value))
                if (value.key === 'welcome') {
                    isShowWelcome.value = true;
                } else {
                    isShowWelcome.value = false;
                    categoryId2 = value.key;
                    handleQueryEbook();

                }
            }


            return {
                ebooks,
                pagination: {
                    onChange: (page: any) => {
                        console.log(page);
                    },
                    pageSize: 3,
                },
                actions: [
                    {type: 'LikeOutlined', text: '156'},
                    {type: 'MessageOutlined', text: '2'},
                ],
                level1,
                handleClick,

                isShowWelcome,
                openKeys

            }
        }
    });
</script>

<style scoped>
    .ant-avatar {
        width: 50px;
        height: 50px;
        line-height: 50px;
        border-radius: 8%;
        margin: 5px 0;
    }
</style>
